Forum Discussion
ajriding
Jul 15, 2020Explorer II
While you are at it... Put a circuit breaker in the camper to disconnect the battery from the vehicle plug. This will disconnect 12 volt power from the plug so there is no electrical "potential" at the plug: positive and negative charges. This should greatly reduce the trailer plug from turning green and corroding over time.
You can connect to the vehicle battery, but I generally do not like to connect things to the terminals. Find power in the fuse box under the hood, or connect to the alternator or even to the starter motor if it is in a good place. On trucks the starter is perfect, but on a van you might have a sideways engine and strange things going on....
Agree on the 30-40 amp breaker on thick wire.
You alternator will put out 90-130 amps probably, but all those amps will not be going to the trailer, so a reduced breaker of 30-40 is good. #10 will protect the wire, and your trailer will not require more than 30.
You can connect to the vehicle battery, but I generally do not like to connect things to the terminals. Find power in the fuse box under the hood, or connect to the alternator or even to the starter motor if it is in a good place. On trucks the starter is perfect, but on a van you might have a sideways engine and strange things going on....
Agree on the 30-40 amp breaker on thick wire.
You alternator will put out 90-130 amps probably, but all those amps will not be going to the trailer, so a reduced breaker of 30-40 is good. #10 will protect the wire, and your trailer will not require more than 30.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,201 PostsLatest Activity: Feb 19, 2025